Arch Capital's Q3 2026 profit falls as catastrophe losses climb

what happened

Arch Capital Group reported its third-quarter 2026 results, citing solid underwriting across its three segments and higher net investment income, according to TradingView. Net income available to common shareholders came in at $1.0 billion, or $3.00 per diluted share, compared with $1.3 billion, or $3.56, a year earlier.

Operating income was lower at $910 million, or $2.67 per share, versus $2.77 in the third quarter of 2025. The combined ratio rose to 82.5% from 79.8%, mainly because of higher catastrophe losses, including losses linked to the Iran conflict. Net investment income increased to $451 million, while net realized losses were $99 million, against a gain of $210 million a year earlier.

The company repurchased $1.4 billion of shares, and book value per common share stood at $67.90 on September 30, down 0.2% from June 30.

why it matters

For insurers and reinsurers, the combined ratio and catastrophe costs are the main measures here. Rising losses alongside higher portfolio yield show that results in the sector depend more on event risk than on investment income.

market impact

Arch Capital shares (ACGL): lower earnings and higher loss ratios weigh, while stronger investment income partly offsets.

• ↔ACGL shares mixed — lower earnings and higher catastrophe costs are partly offset by stronger investment income and buybacks

tags

instruments